There are situation where shooting out a tire is legal, maybe not a robber, but in certain situations. And shooting a warning shot in the air DURING a crime in progress not just for fun, is justifiable. And as for the bullet coming down, myth busters killed that one. People, there are situations where all of these actions are justifiable, if done With a crime in progress. I don't know where you live, but in arkansas, during a violent crime all of the so called irresponsible actions that you speak of, is justifable during a crime in progress. Research your laws, it may be legal for you to stop a violent act as well. And not just on yourself.

I live in Vermont. Vermont is about as gun friendly as you can get yet each of the actions you list would be breaking the law.
Don't think I would see any jail time, just fines and some evil looks from responding LEO's.